_IOC_SIZE 57 arch/alpha/include/uapi/asm/ioctl.h #define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) _IOC_SIZE 57 arch/sparc/include/uapi/asm/ioctl.h #define _IOC_SIZE(nr) \ _IOC_SIZE 97 include/uapi/asm-generic/ioctl.h #define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)